Structural and magnetic properties of Cr doped strontium spinel ferrite SrFe2O4 by sol-gel auto-combustion method

Enhancement of the structure, solar cells and vibrational studies of undoped CuCr2O4 and La-doped CuCr2O4 semiconductor compounds

“…A very high peak alongside hkl (311) value Table 1 , displays the samples crystal structure. The migration of Cu, Cr and La ions at the octahedral and tetrahedral location in the oxides creates a difference in the intensity of the peaks [ 14 , 15 ]. In addition to the shift, it was found that the intensity of the peaks was found to decrease and the full-width-half-maximum (FWHM) was increased by the Cu, Cr and La doping, which is given an explanation by the decrease of crystal size by the addition of transition metal atoms [ 16 ].…”

Effect of manganese doping on the magnetic and magnetocaloric properties of zinc ferrite

“…MnZn ferrites attracted considerable investigations because of their potential applications in catalysis, magnetic storage, cancer therapy, medical imaging and electronic devices. [1][2][3][4][5] The chemical processes currently in vogue for the synthesis of MnZn ferrite particles include co-precipitation, [6][7][8][9] the sol-gel auto-combustion method, [10][11][12][13] the solid-state reaction method, [14][15][16] solvothermal technique, [17][18][19] microwave processing technique, [20][21][22] hydrothermal synthesis etc. [23][24][25][26][27] The solvothermal technique has the advantages of functioning at low temperatures, being a simple, lowcost synthetic process, exhibiting an ease of compositional control and producing ultrafine particles with a narrow-sized distribution.…”